The United States has converged on sending humans to Mars as the goal for human exploration of deep space. Experts agree, while challenging, the goal is within reach, but only if we have the proper discipline a...

Twenty years ago, Robert Zubrin emerged as arguably the leading advocate for human missions to Mars. His book The Case for Mars, which explained both how humans could go to Mars as well as why they should, came...

The debate over the U.S. Air Force’s reliance on Atlas 5’s Russian RD-180 engine garners more headlines. But the Defense Department’s space leaders have spent much of the spring talking about another issue: the...

Cislunar-1000
1,000 people living and working in cislunar space within 30 years
It’s hard not to miss SpaceX’s long-term vision. From Elon Musk’s quips about retiring on Mars to the “Occupy Mars” t-shirts wor...

The U.S. Air Force is in the early stages of determining how it might certify previously used rockets — such as the Falcon 9 first stages piling up Florida — to launch military satellites.
The Air Force awarde...

Canada’s strategic interest in maritime surveillance may surpass that of any nation. So when Canada decides it needs 90 percent less satellite-based ship-tracking in the coming year than it has purchased in the past...